Gtk: Allow all columns in task manager to be sortable.

chrome/browser/gtk/task_manager_gtk.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_
 #define CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
 
 #include "chrome/browser/task_manager.h"
+#include "grit/generated_resources.h"
 
 class TaskManagerGtk : public TaskManagerModelObserver {
  public:
   TaskManagerGtk();
   virtual ~TaskManagerGtk();
 
   // TaskManagerModelObserver
   virtual void OnModelChanged();
   virtual void OnItemsChanged(int start, int length);
   virtual void OnItemsAdded(int start, int length);
@@ skipping 34 matching lines @@
 
   // Opens the context menu used to select the task manager columns.
   void ShowContextMenu();
 
   // Activates the tab associated with the focused row.
   void ActivateFocusedTab();
 
   // Opens about:memory in a new foreground tab.
   void OnLinkActivated();
 
+  // Compare implementation used for sorting columns.
+  gint CompareImpl(GtkTreeModel* tree_model, GtkTreeIter* a,
+                   GtkTreeIter* b, int id);
+
   // response signal handler that notifies us of dialog responses.
   static void OnResponse(GtkDialog* dialog, gint response_id,
                          TaskManagerGtk* task_manager);
 
   // realize signal handler to set the page column's initial size.
   static void OnTreeViewRealize(GtkTreeView* treeview,
                                 TaskManagerGtk* task_manager);
 
   // changed signal handler that is sent when the treeview selection changes.
   static void OnSelectionChanged(GtkTreeSelection* selection,
                                  TaskManagerGtk* task_manager);
 
   // button-press-event handler that activates a process on double-click.
   static gboolean OnButtonPressEvent(GtkWidget* widget, GdkEventButton* event,
                                      TaskManagerGtk* task_manager);
 
   // button-release-event handler that opens the right-click context menu.
   static gboolean OnButtonReleaseEvent(GtkWidget* widget, GdkEventButton* event,
                                        TaskManagerGtk* task_manager);
 
   // Handles an accelerator being pressed.
   static gboolean OnGtkAccelerator(GtkAccelGroup* accel_group,
                                    GObject* acceleratable,
                                    guint keyval,
                                    GdkModifierType modifier,
                                    TaskManagerGtk* task_manager);
 
+  // Page sorting callback.
+  static gint ComparePage(GtkTreeModel* model, GtkTreeIter* a,
+                          GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_PAGE_COLUMN);
+  }
+
+  // Physical memory sorting callback.
+  static gint ComparePhysicalMemory(GtkTreeModel* model, GtkTreeIter* a,
+                                    GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_PHYSICAL_MEM_COLUMN);
+  }
+
+  // Shared memory sorting callback.
+  static gint CompareSharedMemory(GtkTreeModel* model, GtkTreeIter* a,
+                                  GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_SHARED_MEM_COLUMN);
+  }
+
+  // Private memory sorting callback.
+  static gint ComparePrivateMemory(GtkTreeModel* model, GtkTreeIter* a,
+                                   GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_PRIVATE_MEM_COLUMN);
+  }
+
+  // CPU sorting callback.
+  static gint CompareCPU(GtkTreeModel* model, GtkTreeIter* a,
+                         GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_CPU_COLUMN);
+  }
+
+  // Network sorting callback.
+  static gint CompareNetwork(GtkTreeModel* model, GtkTreeIter* a,
+                             GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_NET_COLUMN);
+  }
+
+  // Process ID sorting callback.
+  static gint CompareProcessID(GtkTreeModel* model, GtkTreeIter* a,
+                               GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_PROCESS_ID_COLUMN);
+  }
+
+  // Goats Teleported sorting callback.
+  static gint CompareGoatsTeleported(GtkTreeModel* model, GtkTreeIter* a,
+                                     GtkTreeIter* b, gpointer task_manager) {
+    return reinterpret_cast<TaskManagerGtk*>(task_manager)->
+        CompareImpl(model, a, b, IDS_TASK_MANAGER_GOATS_TELEPORTED_COLUMN);
+  }
+
   // The task manager.
   TaskManager* task_manager_;
 
   // Our model.
   TaskManagerModel* model_;
 
   // The task manager dialog window.
   GtkWidget* dialog_;
 
   // The treeview that contains the process list.
   GtkWidget* treeview_;
 
   // The list of processes.
   GtkListStore* process_list_;
+  GtkTreeModel* process_list_sort_;
 
   // The number of processes in |process_list_|.
   int process_count_;
 
   // The context menu controller.
   scoped_ptr<ContextMenuController> menu_controller_;
 
   GtkAccelGroup* accel_group_;
 
   // An open task manager window. There can only be one open at a time. This
   // is reset to NULL when the window is closed.
   static TaskManagerGtk* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_